20730302 has 16 divisors (see below), whose sum is σ = 32462640. Its totient is φ = 9916032.

The previous prime is 20730277. The next prime is 20730313. The reversal of 20730302 is 20303702.

It is a super-2 number, since 2×20730302² = 859490842022408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973 + ... + 8135.

It is an arithmetic number, because the mean of its divisors is an integer number (2028915).

Almost surely, 2^20730302 is an apocalyptic number.

20730302 is a deficient number, since it is larger than the sum of its proper divisors (11732338).

20730302 is a wasteful number, since it uses less digits than its factorization.

20730302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 20730302 is about 4553.0541398055. The cubic root of 20730302 is about 274.7062516260.

The spelling of 20730302 in words is "twenty million, seven hundred thirty thousand, three hundred two".